Spot the Difference

Do you sometimes think to yourself: "Oh, I’m so tired, I could sleep for days!" Well, if you’re a snail, you have the possibility of sleeping for up to three years in one go! This process is called aestivation, and it is when snails go dormant during hot and dry periods.

The decimal number system we use today seems like the obvious choice, given that we have ten fingers to count with. But in the olden days, people counted in dozens, not tens. Hence the word “hundred” – it derives from the old Norse “hundrath” and originally meant 120.

According to Paul McCartney, the song 'A Day in the Life' features a frequency that only dogs can hear. This hidden tone appears at the end of the song. If you have a dog, try putting on the song and seeing how your dog reacts in the final measures!